Improvement in carpet-sweepers



2 SheetsSheet 1.

A. W. STEWART.

CARPET SWEEPEB. No. 186,895. Pa tenj.ed'J'an.30,187"7.

Ii. Farm PHDT Z Sheets-Sheet 2'.

A. W. STEWART.

CARPET-SWEEPER.

Patented Jan.30,1877

Wit name 5. W W

UNITED :35: TES

PTENT DFFIGE.

ALEXANDER STEWART, OF BOSTON, MASSACHUSETTS IMPROVEMENT INCARPET-SWEEPERS.

Specification forming part of Letters Patent No. 186,895, dated January30, 1877 application filed December 18, 1876.

clearing the bearings.

My present invention consists in the combination, with the sweeper-frameand its brush,

of a Iongitudinally-movable spindle for one end of the brush to revolveupon, which spindle does not revolve with the brush, but is separate anddistinct from it, and is attached to and works through the end board ofthe sweeper, and is provided with a spring to press it toward the brushand a handleor ring to withdraw it. A

In the drawing, Figure 1 is a vertical section through the brush-spindleand adjacent parts; Fig. 2, an end view; and Fig. 3, a horizontalsection, showing the spindle retracted to release the brush.

A represents the spindle; B, the brushshaft; and O, the ease or the endboard of the frame. The brush is driven by any desired means, and isprovided with suitable bearings formed in or attached to the case 0. Thebrush-spindle may be, at one end, of ordinary construction, and attachedto the brush-shaft, but at the other end, shown in the drawings, it isattached to the end board of the frame, through which it passes, andprojects inwardly a suffioient distance to enter an axial perforation inthe brush-shaft or its cap, so that the brush may rotate thereon. Asuitable spring, D, serves to keep the spindle in this position; butwhen it is desired to remove the brush from the frame, or to replace it,the spindle is retracted against the resistance of the spring by asuitable handle or ring, E, by which it may be drawn out of theperforation in the brush-shaft, when the brush, unsupported at one end,may be readily removed.

The operation is obvious Without further detail. The-sweeper isfurnished with a dustpan at each side of the brush, and with drivingmechanism, cover, and handle,in the usual manner.

I disclaim in this invention all devices in which the spindle revolveswith the brush, and is removable from the frame with it, such devices invarious forms being common and well known; but i I claim as of myinvention- In combination with the frame of a carpetsweeper and itsbrush, the spindle A, attached to the frame, and working longitudinallytherein, to support or release the brush, and operated by the spring Dand the handle E, substantially as set forth.

ALEXANDER W. STEWART.

Witnesses:

A. H. SPENCER, E. A. PHELPS.

